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Finding the Fourth Proportional to 106,438.88, 159,683.34 and 36,318.44

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Solution

The fourth proportional to 106,438.88, 159,683.34 and 36,318.44 is: 54,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,438.88 : 159,683.34 = 36,318.44 : x
  2. Step 2: Convert to fraction form
    106,438.88/159,683.34 = 36,318.44/x
  3. Step 3: Cross multiply
    106,438.88x = 159,683.34 × 36,318.44
  4. Step 4: Simplify right side
    106,438.88x = 5,799,449,802.79
  5. Step 5: Solve for x
    x = 5,799,449,802.79/106,438.88
  6. Step 6: Final answer
    x = 54,486.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.